<template>
  <div id="app">
    <div class="header">
      <router-link to="/list" class="header-title">电商网站示例</router-link>
      <div class="header-menu">
        <router-link to="/cart" class="header-menu-cart">
          购物车
          <span v-if="cartList.length">{{ cartList.length }}</span>
        </router-link>
      </div>
    </div>
    <router-view />
  </div>
</template>
<script>
export default {
  computed: {
    cartList() {
      return this.$store.state.cartList
    },
  },
}
</script>

<style></style>
